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Finding the Fourth Proportional to 219,428.88, 302,726.12 and 127,532.89

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Solution

The fourth proportional to 219,428.88, 302,726.12 and 127,532.89 is: 175,945.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,428.88 : 302,726.12 = 127,532.89 : x
  2. Step 2: Convert to fraction form
    219,428.88/302,726.12 = 127,532.89/x
  3. Step 3: Cross multiply
    219,428.88x = 302,726.12 × 127,532.89
  4. Step 4: Simplify right side
    219,428.88x = 38,607,536,962.09
  5. Step 5: Solve for x
    x = 38,607,536,962.09/219,428.88
  6. Step 6: Final answer
    x = 175,945.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.